code: def get_all_coeffs():
      """Get all available calibration coefficients for the satellites."""
      coeffs = {}
  
      for platform in URLS:
          if platform not in coeffs:
              coeffs[platform] = {}
          for chan in URLS[platform].keys():
              url = URLS[platform][chan]
              print(url)
              page = get_page(url)
              coeffs[platform][chan] = get_coeffs(page)
  
      return coeffs
  
file_path: satpy/utils/fetch_avhrr_calcoeffs.py
imports: import datetime
  import os.path
  import sys
  import h5py
  import urllib2
label_desc: Use image node_id 3 for calling a global function with example usage: get_all_coeffs() and returns: coeffs